Invisible hinge.



F. 1. KORB.

INVISIBLE HINGE. APPucATloN FILED AUG.30.1917.

392,435e Patented 061;. 22, 1918.

2 SHEETS-SHEET l.

INVENTOR wnNEssEs Tree? 455727) ATTORNEY F. J. KORB.

tNVI'SlfBLE HINGE.

APPucAloN FILED AUG.30,1911.

l 92825435@ Patented Oct. 22, M18.

2 SHEETS-SHEET 2.

6% INVENTOR j? JQM WITNESSES ATTORNEY.

FRED J. KORB, F CHICAGO, ILLINOIS.

vINVISIBLE HINGE.

Specification of Letters Patent.

application ined August so, 1917. serial No. 188,976.

To all whomzt may concern.' Y Be it known that I, FRED J. KoRB, a c1t1- zen of the United States, residing at Chicago, inthe county of Cook and State of- Illinois, have invented certain new and useful Improvements in Invisible Hinges, of

which the following is a specification.

This invention relates generally to hinges,

' and particularly to invisible hinges, having for its primary object to generally simplify and improve the construction and operation of devices of this character, aswell as to increase the efficiency of the same.

A further object of the invention is to provide an improved hinge which, when the *door is closed, will be invisible, and which permits of the door being swung to full open position.

A still further object of the invention is to provide a hinge of the character set forth which shall be of extremely simple and inexpensive construction, which is composed of but few readily assembled parts, all of which are constructed and assembled in such manner as to minimize the opportunity for wear, or breakage, which shall be positive in operation, and which will prove thor'- ouglily efiicient in use.

ith these objects in view together with others which will appear as the description proceeds, the invention resides in the novel formation, combination and arrangement of parts, all as will be described more fully hereinafter, illustrated in the drawings and particularly pointed out in the claims.

In the drawings: V Figure 1 is a perspective view illustrating -a hlnge of my invention shown detached from the door and door jamb, and illustrating the hinge in open position.

Fig. 2 is a .detail perspective viewof one of the hinge leaf connecting arms,

Fig. 3 is a top plan view of a hinge of my f invention as appended to a door, the view illustrating the hinge in open osition,

Fig. 4 is a View sunilar to ig. 3 and illustrating the hinge as it will appear when being moved to closed position, and

Fig. 5 is a similar view showing the position the parts will assume when the hinge is in closed position.

Referring now particularly to the drawings, 10 andll represent respectively, the leaves or plates of the hinge, the former of which is adapted to be secured to the door jamb, while the leaf 11 is 'adapted to be secured to the' door butt. Screws, nails or any other approved retaining elements may be employed for ho'lding the leaves rigidly to'their respective bases. The leaves 10 and 11 Iare of such length as not to protrude at their ends beyond the edges of the door jamb and door butt, so that when4 the door is swung to closed position, no portion of the leaves will be visible.

The hinge plates or leaves may be of cast metal or may be stamped, and each is provided at one end with -a pair of laterally disposed and alinedv knuckles 12, each pair of knuckles upon the opposing leaves being offset with relation to each other, so as to be in lateral alinement when the said leaves are folded one upon the other. The edges of the leaves 10 and 11 which are directly opposite 'the knuckle portions 12 are cut away or recessed as indicated at 13, the said recessed portions in the said leaf ends being provided so as to accommodate the said knuckles when the leaves are swung upon each other.

Each of the hinge plates is provided with a longitudinally disposed slot or channel 14, the said channels extending throughout substantially the entire length of the said plates. The slots in the said plates are ar- .ranged'so as to be alined with the spaces between the spaced knuckles 12 of the opposing plates, and pivoted as by a suitable hinge pin 14 between the said knuckles 12 of each plate is one end of an arm 15. These arms, may, if desired, be provided at'their inner ends with knuckles, as shown, and fit snugly between the spaced knuckles 12 of their respective hinge leaves.y These arms are of a width equal to that of the slot 1 4, and the said arms extend at their outer ends through the slot of the opposing hinge plate. The free ends of the arms are bent inwardly, as illustrated particularly in Figs. 1v and 2 of the drawingswand these inwardly bent ends are provided with laterally extending lugs. 16, adapted to engage with the under face of the plate with which the said free end is associated. It will be observed that the slots 14 communicate with the eXtreme ends A projection 18 extends laterally .from-each 110 of the arms 15 adjacent the free end thereof,

Patented. oct. 22,1918.

and this projection limits the free end of the arm with which it is connected in its inward swinging movement.

Each of the arms adjacent their point of connection with their respective plates is provided with a laterally disposed. knuckle portion `19, the knuckle portion of said opposing arms extending at one side beyond the latter so as to engage with each other. A pintle pin is extended through these alined knuckles 19, whereby the latter are fulcrumed together. Each of the plates upon their adjacent faces is provided with a recess 21, which recessesl are-disposed laterally or at right angles to the slots 14, and communicate with the latter at one end.

f These recesses areadapted to receivethe enlarged knuckle portions 19 of the arms 15 when the hinge 1s swung to closed position.

It will be observed thatzthe hinge knuckles at the ends of the plates, the recesses at the ends of the plates for receiving the knuckles of the opposing plates, and the knuckles ofthe arms -15 and their housing recesses are all soarranged or positioned as to permit of the parts fitting snugly together when one of the leaves is moved inwardly upon the other. By so constructing the hinge, it is obvious that a tight it of the door to the jamb is assured, and without resorting to the necessity of cutting away to any great extent the door jamb or butt. A door hinge so constructed will be invisible when the door is in closed position, but the particular arm arrangement permits of the door being swung to full open position. By connecting the hinge leaves by the arms in the manner shown, it is obvious that the weight of the door will not be entirely borne by the leaf knuckles and pintle pins, but this weight will be distributed to other parts of the hinge leaves and tothe arms connecting the same. The hinge of my invention is designed particularly for use in connection with doors and bodies of motor vehicles, but it is obvious that its use is not necessarily so restricted.

While the present is a disclosure of the preferred embodiment of the invention, it is to be understood that the invention is not limited thereto, as various changes in the minor details of construction, proportion and arrangement of parts may be resorted to if desired without departing from the spirit or the invention as defined by the appended c aims. f

What is claimed is:

1. In a hinge, a pair of leaves having longitudinal slots, a pair of arms one pivoted to each leaf and the said arms havin their free ends slidably arranged in sai lugs formed'integral with said arms at the free ends thereof to prevent same becoming disengaged from said slots, and the said arms being pivoted together adjacent their point of connection withl their respective leaves.

2. In a hinge, a pair of leaves having longitudinal channels in their adjacent faces, knuckles on the ends of said leaves andthe said knuckles bein longitudinally alined with the channels o the opposing leaves, an arm pivoted at one end in said barrels, the free ends of said arms being slidably arranged in the channels of the opposing plates, means for preventing said ends becoming detached from the ends of said channels, and the Said arms being pivotally connected to each other adjacent their point ofl connection with their respective leaves.

3. In a hinge, a pair -of leaves having longitudinally disposed slots, each leaf having laterally disposed notches communieating at one end with the said slots, an arm hinged at one end to each leaf, the free ends of said arms protruding through the slot of the opposing leaf, laterally disposed lugs on the ends of said arms engaging the rear faces of said leaves, a knuckle disposed laterally of each arm and the said `knuckle being adapted to seat in said notches when said leaves are swung upon each other, a pin connecting the knuckles ofthe said arms, and a projection extending laterally from each arm adjacent the freel end thereof.

4. In a hinge, a pair of leaves having slots coextensive therewith, arms hingedly connected at one end to said leaves, the free ends of said arms extending through the slots in the opposing leaves, lugs projecting laterally from the free end of each arm and engaged behind the edges of the leaves which define the slots, and a pivot pin connecting the said arms together near their pivotal connection vwith said leaves.

In testimony whereof Ifafhx my signature` in presence of two witnesses.

FRED J. KORB.

Witnesses:

PAUL WENDLER, ROY PAU-LEY.

slots, 

